Document Detail

Preterm labor: placental pathology and clinical correlation.
MedLine Citation:
PMID:  10432144     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To determine the relevance of ischemia in the incidence of preterm labor. A second objective was to document perinatal outcomes for patients with preterm labor classified according to its clinical, functional, and pathologic characteristics (infectious, ischemic, mixed, or idiopathic). METHODS: Perinatal outcomes were evaluated for 145 consecutive patients with preterm labor, subdivided into etiologic categories according to clinical, functional (Doppler), and morphologic (placental pathology) characteristics. A group of 44 normal pregnancies delivered at term served as controls. RESULTS: Of the preterm labor group, 28.3% were classified as ischemic, compared with 4.5% of the control group (odds ratio and 95% confidence interval = 8.28 [1.8, 51.8]; P < .05). Compared with the control group, the preterm labor patients who delivered preterm had higher rates of ischemia (31.4% compared with 4.5%; P < .05) and infection (16.1% compared with 2.3%; P < .05). Among the preterm labor group, patients classified in the infectious or ischemic subgroups had a higher rate of preterm delivery (95.0% and 90.2% compared with 73.2%; P < .05), admission to the neonatal intensive care unit (75.0% and 61.0% compared with 40.0%; P < .05), and newborn weight under 1500 g (35.0% and 19.5% compared with 3.7%; P < .05) than the idiopathic subgroup. CONCLUSION: Preterm labor resulting from infection or ischemia is associated with a higher perinatal complication rate than idiopathic preterm labor.
A M Germain; J Carvajal; M Sanchez; G J Valenzuela; H Tsunekawa; B Chuaqui
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Obstetrics and gynecology     Volume:  94     ISSN:  0029-7844     ISO Abbreviation:  Obstet Gynecol     Publication Date:  1999 Aug 
Date Detail:
Created Date:  1999-08-30     Completed Date:  1999-08-30     Revised Date:  2009-10-26    
Medline Journal Info:
Nlm Unique ID:  0401101     Medline TA:  Obstet Gynecol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  284-9     Citation Subset:  AIM; IM    
Department of Obstetrics and Gynecology, Medical Research Center, Pontificia Universidad Católica de Chile School of Medicine, Santiago.
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MeSH Terms
Ischemia / complications*
Obstetric Labor, Premature / epidemiology,  etiology*
Placenta / blood supply*,  pathology*

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